Ammowacal-gas engine



(No Mod-eL) P. J. MQMAHON.

AMMoNIAGAL-GAS ENGINE. y No. 343,599. Patented June 15, 1886.

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y NTRA/Ey UNITED l STATES- PATENT OFFICE.

Y PATRICK J. MCMAHON, OF TANGIPAHOA, LOUISIANA.

A`MM0N|ACALGAS ENGINE.

SPECIFICATION forming part of Letters Patent No. 343,599, dated .lune 15, 1886.

Application filed February 9. 1885. Serial No. 155,424. (No modeLl To a/ZZ whom, it may concern:

Beitknown that I, PATRICK J. MoMAHoN, a citizen of the United States, residing at Tangipahoa, in the parish of Tangipahoa and State of Louisiana, have invented a new and useful Improvement in Ammoniacal-Gas Engines, which invention is fully set forth in the annexed specification and drawings.

The object of my invention is to entirely inclose the engine-cyllnder, valve-chest, Snc., in a covering or jacket,through which the solution of reabsorption is made to circulate by pumping while the engine is in operation, for the purpose of super-heating the gas during expansion or while throttling, as well as to absorb any gas that may leak out around any ofthe joints of the engine or valve-chst.

Referring to the drawings, Figure 1 isa sectional View of an engine-cylinder with my improvements attached and inclosing-cylinder, valve-chest, and packingboxes. Fig. 2 is an elevation of cylinder and improvements when so inclosed. Fig. 8 is a sectional view of t-he jacket and other improvements without the cylinder, and Fig. 4 is a section through Fig. 3 on the linel 2. t

Like letters indicate like parts in all the figures.

In the drawings. A A is a cylindrical ring (or bracket, if preferred) with flanges on each end, and made to tit on the cylinder-head A', and adjacent to the Valve A2, and bolted to the cylinderwith it.

B B is a sheet or plate secu red by bolts B B to A A and to the frame that carries the engine. (Shown at F F.) This plate has separate or outside stuffing-boxes for piston-rod and valve-stem, as shown at G and II. The plate B Bis a cap or cover for the jacket C C, and extends out far enough all around for the flange of this jacket to be bolted to it when it is slipped over the engine, completely inclosthe cylinder and valve-chest.

l D is the inlet to and E the outlet from the jacket G C, for the passage of the solution of reabsorption.

It will be seen from the foregoing that when the engine is running, andthe liquid which absorbs the gas as it is exhausted from the engine is forced in the jacket C C at D and al lowed to flow out at E into a receiver,the cylinder and valve-chest would be at all times surrounded with the liquid and the liquid constantly changing. The temperature of the cylinder would beprevented from falling too low 55 while working with a high grade of expansion, as would be the case with an exposed cylinder; also, that the elastic forces of the gas would be greatly increased by superheating, and that any leakage of gas occurring in any 6o ofthe joint-s around the engine-cylinder and valvechest will be absorbed by the liquid of reabsorption surrounding the same.

As before stated, this invention has relation to ammoniacal-gas engines in which the gas 63 is used over and over by condensing and regenerating the same through change of teinperature, and in its application unlike the passage of live steam about the cylinder of a steam-engi ne in that it has facilities and fea- 7o tures of construction for condensing, regenerating, and reusing the motive agent, asin this case; nor are the constructions hitherto eniployed ot' such use ofsteain to practically serve the object in view in this instance, so that 75 4while I do not broadly claim the steam-jacketing, the cylinder, or superheating the saine by live steam- What I do claim is- 1. rlhe combination of the cylinder A and 8o valvechest A2, the jacket C, and supportingplate B, mounted upon the frame F, and the interposed cylinder-supports A A, substantially as specified.

2. The cylinder A and valve-chest A2 and S5 their stuffing-boxes, in combination with the inclosiug-jacket C, having inlet D, arranged beyond one end of the cylinder, and outlet E, arranged beyond the opposite end of the cylinder, and independent stuffingboxes G H, 9o substantially as specified.

3. The combination ofthe frame F, plate B, supports A, cylinder A,valvechcst A, jacket C, and bolts B B', passing through said plates and through flanges on the cylinder and sup- 95 port, substantially as specified.

I. J. MCMAHON.

Vitnesses:

J BENDERTAND, WM. B. BARNETT. 

